No, we don't create a register of companies good, bad, or indifferent. The closest thing we come to a register, if I can put it this way, is when we have standing offers or supply arrangements where pre-qualified firms are listed for a specific procurement. That is another question that other jurisdictions have grappled with—creating lists versus not creating lists. As we're finding in jurisdictions, as soon as you create a list, put a name on a list, it becomes dated and you have to start all over again.
We prefer currently what I would consider to be our dynamic model, which is that every time a contract is up, we actually check every time there's a contract amendment. There's a process where we validate. It is a constant updating of our own information, as opposed to having a list that can be pretty static or stale-dated fairly quickly.